According to them, the people who suffer with it are those with neutral expressions showing just enough contempt for people to notice, but not enough to be really obviously apparent.

It’s this this unintentional ‘pissed off’ look that makes other people think they’re annoyed the who time, when really they aren’t.

The research also found that it occurs just as much in men and it does in women.

“[It] isn’t something that occurs more in women but we’re more attuned to notice it because women have more pressure on them to be happy and smiley and to get along with others,” researcher Abbe Macbeth said.

So there, you have it – next time you see Jeremy Renner looking angry on a red carpet, you’ll know the reason why.